One of my projects, Wralk, was developed in 2018 and focused on real-time visualization in web browsers. One of the challenges I encountered was implementing 360-degree hit testing within the scene.
After a fresh installation of Ubuntu Server, I usually install and configure several popular software packages and tools.
Adding Swap Space
If swap space is not already configured, I recommend adding it based on the server’s available memory and workload requirements. The appropriate swap size can vary depending on the system’s needs.
For example, if the server has 2 GB of RAM, you could allocate 2 GB of swap space as well.
Bluetooth (LE) 4.0+ was introduced in 2011 and it is growing day by day. Smart applications can be powered by Bluetooth with its low energy functionality. Today, many smart devices support Bluetooth LE. Low energy consumption is mainly advantage of this technology. It comes with Client-Server concept .
As in picture, Client which may be your smart phone or tablet, wants data from server such as your heart rate controller.
MQTT has become a widely used messaging protocol for the Internet of Things (IoT). The first version of the protocol was authored by Andy Stanford-Clark of IBM and Arlen Nipper in 1999. It was originally designed with a focus on minimizing battery consumption and bandwidth usage while keeping the protocol lightweight.
In classical mechanics, inertial reference frames are assumed to be time-independent. An Earth-fixed coordinate system can be used as an approximately stationary reference frame for many practical applications.
In my application, I use an FIS1100 MEMS sensor, which incorporates a 3-axis gyroscope and a 3-axis accelerometer, together with an external 3-axis magnetometer.
This formula may be necessary when converting spatial coordinates to earth fixed coordinates. But always it needs a initial point to calculate all coordinates.
Formula
As in picture, Client which may be your smart phone or tablet, wants data from server such as your heart rate controller.